Question

When a cyclist is decelerating uphill the forces on him are balanced or unbalanced ​

Answer 1

The forces on a cyclist when decelerating uphill are unbalanced due to the net force acting in opposition to the cyclist's motion.

Step-by-step explanation:

When a cyclist is decelerating uphill, the forces on them are unbalanced. Deceleration indicates that there is a net force acting on the cyclist that opposes the motion. In this context, there are several forces at play: the force of gravity, the normal force from the ground, frictional forces, and any applied forces, such as the cyclist pedaling. As the cyclist moves uphill, the force of gravity tries to pull them down the slope, and if they are slowing down, the frictional force that is helping to stop them is less than the component of gravitational force.

The force from the ground on the bicycle wheels during deceleration is not just for maintaining stability through a balance of forces, but also to provide the necessary force to reduce speed. The force due to deceleration (which can be related to friction between brake pads and wheels, if brakes are applied) is what makes these forces unbalanced.

Answer 2

Unbalanced

Step-by-step explanation:

A cyclist decelerating uphill has unbalanced forces acting on him. An unbalanced force acting on a body has a net force which is greater than zero. When a body is accelerating or decelerating, the forces are not balanced.

• A body with a net force of zero has balanced forces acting on it.
• Such body is moving with constant acceleration.
• According to newton's first law of motion" a body will remain in state of rest or of uniform motion unless an external force acts on it".
• The external force causes acceleration to change drastically.